Muffler



Jgn. 3, 1933. E. H; RUsTlN ET AL 1,892,853

.Y l MUFFLER Filed Jan. 8, 195i 2 Sheets-Sheet l lam. 3, 933. E. H. HummET A1,. 'F.SQZQSSE MUFFLER Filed Jan. a, 1951 2 sheets-sneer 2 zgezelgw?lNvENToR cg/ g5 53 WITNESS: f M ATTORNEY;

Patented Jan. 3, 1933 UNITED STATES PATENT'l OFFlCEj i EUGENE n'. EUSTINyAND DANIEL J. IULo, OEBROOKLYN, NEW YORK; SAID EUGENE H. EUsTINAssIGNoR. oF Two-THIEDS TOMAEIE RtrsTrN AND sAID DANIEL J. IULo AssIGNoEor ONE-THIRD To EENA IULo, -BOTH or* BROOKLYN, NEW Yom;

MUEELEE Application meaJanuary a,v 1931. serial No. 507,444.

This invention relatesto muiiiers'` for internal combustion l enginesand is an improvementupon .thef muffler disclosed in our copendingapplication tiled May 2, 1930, Serial No. 449,313. j Likethe inventiondisclosed in the application mentioned, the presentv invention has forits primary object the provision of a device which may be attached tothe exhaust of an internal combustion engine to mutile the sound `of theexhaust, and to absorb the exhaust gases, so that little if any Vgaswill reach the atmosphere.

The present invention further has for an object the provision of meansto simplify and cheapen the construction of the muiiler, and

Y lto materially add to its efficiency.

With the above and other objects in view, the invention further includesthe following novel features and details of construction, to behereinafter more fully described, illustrated in the accompanyingdrawings and pointed out in the appended claims.

Figure 1 is a vertical longitudinal sectional view illustrating theinvention.

Fi ures 2, 3, 4 and 5 are sections taken respectively on the lines 2 2,3-3, 4 4 and 5-5 of Figure 1. y

Figure 6 is an enlarged fragmentary sectional view through` the upperend of. the valve cylinder illustrating its communication with theatmosphere. u

Referring to thedrawingsin detail wherein like characters of referencedenote corresponding parts, the reference character 10 i11- `dicates thecasing of the muiiier which is provided withl a removable top or cover11, the

' latter being held in place by bolts or screws 12. Preferablyl formedintegral with the muffler casing is a conduit 13, having one end incommunication with an inlet port 14, which is adapted for communicationwith the'exhaustof an engine. The lower inner end of the conduit 13 isin communication with a valve casing 15, through the medium of a shortpipe section 16, a check valve 17 being arranged within the casing 15. Aremovable plug 18 extends through the valve casing 15. Also incommunication with the valve casing V isadischarge nozzle 19. This noz-,zle yis closedvat its outer end "and isprovided with spaceddischargeopenings 20 `which Vare arranged at an angle of ninety degreeswithrespect toone another and so disposed `that exhaust gases passing fromthe nozzle through these openings `will be directed downwardly. Themuffler casing 10'is partly filled with water or other suitable liquid,the

level of which is indicated at21, and for this purpose, the casing 10 isprovidedwith a lllng opening 22 which is normally closed by a plug 23. Adrain cock 24 is in communication with the casinglO below the liquidlevel line. y L

Extending upwardly from the bottom of the casing is a delector plate 25.This plate extends upward, substantially to the liquid Y level lineandas rshown in Figure 2 of the l drawings, the side edges of the plateterminate short ofthe side walls of the casing 10.

Arranged within the casing 10 is a pipe or conduit 26. One end of thispipe or conduit is attached to the top 11 as shown at 27,

While the opposite lower end of thepipe is attached to the bottom of thecasing through the medium of a lug 28 and a screw 29. The lower end ofthis pipe is closed by a valve 30 which is carried at the out-er end ofan arm 31. This arm is pivotally mounted as "shown at 32'and the valve30 carries a stem 33 which is freely movable within an opening 34provided in the arm. A securingnut 35which is mounted upon'the stem 33,acts to hold the parts associated, but this nut is so spaced from thearm 31 as to permit of a slight movement and provide for the perfectseating of the valve 3() against the end of the pipe 26.A

The pipe 26 is providediwith a partition "36 which terminates short ofthe lower end of the pipe and divides the pipe into a passage 37 and apassage38, the adjacent endsV 7 ating axiallyV within 'the bushing z'Vin position `for use.

whose other end is in communicationwith the atmosphere.

The arm 31 is pivotally mounted as shown at 32 betweenspaced ears l2whicliextend from the pipe 26, while also extending Afrom this `pipe isa rigidarin i3 whose outer end carriesa cylinder 14 within which ispositioned a bronze or other bushing 4-5.'

46 .which is bored as indicated.;N ceive a stationary p'ston 4S, the, ,Yo carried at the lower' end of a stein i9 which extends from tl'ieupperend of a capO.-

This` stem i9 is hollow sowas to providean Lair passage 51, the upperend ot'which coinmunicaf'es with a .hollow screw 1 52' which the liquid,asubmerged separating lchamber passesthrough the stem il? .and acts toretain The. hollow screw 52 further. provides. a passage which isincomvmunicationgwith Va. pipe 53 attached( tothe cap' 50 .as shown at 54.y

The v inner Yend of the passage 51 .oil the stem i9communicates with avalve chamber 55 provided iii the piston d8, onel end of this chamberbeingclosed by a plug'dwhich is provided lwith arestricted opening 5'5".

` VVThe muffler casing is provided with drain opening 58 which isnormally closed by'a plug-,59, and with apertured ears or lugs 60, bymeans of which itV may be secured Exhaustgases ent r the port 14 andpass downward through vconduit: 13, the valve 1'? and downward andoutward vthrough the nozzle 19. The gases escaping fromthe nozzle strikethede'liector plate and pass upward through and out of the liquid,rising tothe top of the casing 10 and entering the passage 37through-the the mufiler through flip o enino' 40. These ases assdownward through the passage 37 and i'oice the valve from its seat, sothat water carried into the passage 37 with the gases is separated thispoint and passes outward into the mufller casing. The separated gasespass upward through the passage 38 to the atmosphere in a puriiiedstate.The. parts are so proportioned that compression of air within Athehollow rod i6 is just suilicientto balance the operation of the valve30, theV compressed air acting to seat the vvalve 61 within'the valvechamber 55. Upon closing movement oi' the val-veBO, the valve 61 willbeexhausted so that sufficient air will be drawn into the rod 46 for thenext compressing operation.

The lower end ofthe rode-6 is biiiuicated Aand has mounted therein aroller 62 which Vbears upon the upper edge of the arm 31,

. seen that escape of liquid lirom the muiller will be impossibleirrespective of the grade or condition of the road over which a vehicle@perf ginesfconiprising a casing havinglan'inlet adapted forcommunication with the exhaust manifold of the engine, the casing beingpartly filled-with a liquid, means having one end in communication withthe inlet and its other end submerged vwithin the liquid and havingoutlet-.openings to discharge the gases into withinitliecasingineansextending above Vthe ten oi the'liouid to receive and direct the theyseparating chamber, a normal- K for resisting openingof the valve andvmeans to direct dry gases tothe atmosphere.'

'2. A* iniilileiiior internal. combustionengines comprisingV a yca singhaving van inlet adapted for communication withl the exhaust manifoldYof the. engine, the Y casing being partly'illed withv a liquid,meanshaving one n end in communication withthe inlet and its i othereiidsuhmerged withinA the liquid and having'outlet openings toydischarge the gases intotlie liquid, asubmerged separating chamberwithin the casing, means extending above ,the top oi the liquid toreceive and direct the gases into. the separating chamber, a normallyclosed "pressure opened valvejforming 'one wall of. the separatin0-chamber toermit the escape of moisture, l and gravityV and compressedair means to yieldinglyresist opening movement ofthe valve.

3. A inuliier for internal combustion engines 'compiisiiio a casinghaving an inlet adapted for communication'with the Yexhaust manifold'otthe engine, the casingbeing partly filled with a liquidgneans having oneend in communication with the inlet and its other end Asi,ibniergedwithin theliquid and havoutlet openings to 'discharge the gases into theliquid, a submerged separating chamber within the casing, meansextending above the topiA olf the liquid to receive and directthegasesivnto the separating chamber, norf mally closed pressure openedvalve forming one wall of the separating chamber to permit the escape oimoisture, and pneumatic means to yieldingly resist opening movement ofthe valve'.l

44A. 'muiiler for internal combustion enginesv ycomprising a casinghaving an inlet adapted 'for communication with the exhaust manifold ofthe engine, the casing being partly filledwith liquid. means having oneend incommuuication with the inlet and its other endsubmerged within theliquid and having outlet openings to discharge the gases into theliquid, a pipe located within the casing and having its lower endsubmerged within the liquid, a partition extending longitudif nally ofthe pipe and dividing the latter into separate passages, one of saidpassages having an inlet port in its upper end and the other of saidpassages being in communication with the atmosphere,said'partitionterminating short of the lower end of the pipe andproviding a Vseparating chamber, a normally closed pressure opened valveforming one wall of the separating chamber to permit the escape ofmoisture and the escape of gas through one of the passages to theatmosphere, an air cylinder with said valve, and a valved piston withinthe cylinder for providing an air cushion opposing movement of thevalve. K l

5. A muffler for internal combustion engines comprising a casing havingan inlet adapted for communication with theexhaust manifold of theengine, the casing being partly illed with a liquid, means to directexhaust gases into the liquid, a submerged separating chamber within thecasing, means extending above the top of the liquid to receive anddirect the gases into the separating chamber, a pivotally mounted arm, anormally closed valve carried by said arm and forming one wall of theseparating chamber, a vertically movable arm having one end engaging thepivotally mounted arm to resist opening rating chamber Within the casinghaving its lower end submerged within the liquid, means within saidseparating chamber communicating with 'the interior of the casing abovethe level of theY liquid therein, gas outlet means connected with theseparator, and `valve means normally closing the lower end of theseparator and opened by an accumulation of water therein.

\ 8. A muliler of t-he character described comprising a casing partlyiilledV with liquid and having means therein adapted to be connectedwith the exhaust manifold of an internal combustionV engine forconducting the exhaust gases into and bubbling them through the liquid,a separator located within the casing divided into two compartments onecommuni- Y eating with the interior of the casing above the liquid ofthe level therein and the other being connected with an'outlet leadingto the atmosphere, the lower end of said separator v being located belowthe liquid level, and a valve normally closing the lower end of theseparator but capable of opening to permit discharge of an accumulationof liquid therein.

In testimony whereof we aiix our signatures.

Y EUGENE H. RUSTIN.

DANIEL J. IULO., Y

movement of the latter, and pressure operated means to yieldingly resistmovement of the vertically movable arm.

6. A muffler for internal combustion engines comprising a casing havingan inlet adapted forcommunication with the exhaust manifold of theengine, the casing being partly lilled with a liquid, means to directexhaust Y gases into the liquid, a submerged separating chamber withinthe casing, means extending above the top of the liquid to receive anddirect the gases into the separating chamber, a pivotally mounted arm, anormally closed valve carried by said arm and forming one wall of theseparating chamber, a vertically movable arm having one end engaging thepivotally mounted arm to resist opening movement of the latter, saidvertically movable arm having an axial bore, a rigid p-iston extendinginto said bore to provide compression and yieldingly resist movement ofsaid vertically movable arm, and valve controlled means to providecommunication between the l bore of the vertically movable arm and theatmosphere. f

7. A muiller for internal combustion engines comprising a. casing partlyiilled-with liquid and having an inlet adapted for communication wit-hthe exhaust manifold of an engine, means connected with said inlet fordirecting exhaust gases in the liquid, a sepaf

